diff --git a/pagetop/src/base.rs b/pagetop/src/base.rs
deleted file mode 100644
index 9757ba5f..00000000
--- a/pagetop/src/base.rs
+++ /dev/null
@@ -1 +0,0 @@
-pub mod theme;
diff --git a/pagetop/src/base/theme.rs b/pagetop/src/base/theme.rs
deleted file mode 100644
index 3a192746..00000000
--- a/pagetop/src/base/theme.rs
+++ /dev/null
@@ -1,2 +0,0 @@
-mod basic;
-pub use basic::Basic;
diff --git a/pagetop/src/core/module/all.rs b/pagetop/src/core/module/all.rs
index 428fbfc4..6575b3a9 100644
--- a/pagetop/src/core/module/all.rs
+++ b/pagetop/src/core/module/all.rs
@@ -28,7 +28,7 @@ pub fn register_modules(app: ModuleStaticRef) {
     let mut list: Vec<ModuleStaticRef> = Vec::new();
 
     // Enable basic theme.
-    add_to_enabled(&mut list, &crate::base::theme::Basic);
+    add_to_enabled(&mut list, &crate::core::theme::Basic);
 
     // Enable application modules.
     add_to_enabled(&mut list, app);
diff --git a/pagetop/src/core/theme.rs b/pagetop/src/core/theme.rs
index 696e2407..97430df2 100644
--- a/pagetop/src/core/theme.rs
+++ b/pagetop/src/core/theme.rs
@@ -6,3 +6,6 @@ pub use regions::add_component_to;
 pub(crate) use regions::ComponentsRegions;
 
 pub(crate) mod all;
+
+mod basic;
+pub(crate) use basic::Basic;
diff --git a/pagetop/src/core/theme/all.rs b/pagetop/src/core/theme/all.rs
index 8c7dbc01..fcc09467 100644
--- a/pagetop/src/core/theme/all.rs
+++ b/pagetop/src/core/theme/all.rs
@@ -14,7 +14,7 @@ pub static THEMES: LazyStatic<RwLock<Vec<ThemeStaticRef>>> =
 pub static THEME: LazyStatic<ThemeStaticRef> =
     LazyStatic::new(|| match theme_by_single_name(&config::SETTINGS.app.theme) {
         Some(theme) => theme,
-        None => &crate::base::theme::Basic,
+        None => &crate::core::theme::Basic,
     });
 
 // THEME BY NAME ***********************************************************************************
diff --git a/pagetop/src/base/theme/basic.rs b/pagetop/src/core/theme/basic.rs
similarity index 70%
rename from pagetop/src/base/theme/basic.rs
rename to pagetop/src/core/theme/basic.rs
index daed3205..7eb22e5c 100644
--- a/pagetop/src/base/theme/basic.rs
+++ b/pagetop/src/core/theme/basic.rs
@@ -1,4 +1,10 @@
-use crate::prelude::*;
+use crate::core::component::ContextOp;
+use crate::core::module::ModuleTrait;
+use crate::core::theme::{ThemeStaticRef, ThemeTrait};
+use crate::html::{Favicon, StyleSheet};
+use crate::response::page::Page;
+use crate::service;
+use crate::{serve_static_files, use_handle, use_static, Handle};
 
 use_handle!(THEME_BASIC);
 
diff --git a/pagetop/src/lib.rs b/pagetop/src/lib.rs
index 76a8134a..2fd99261 100644
--- a/pagetop/src/lib.rs
+++ b/pagetop/src/lib.rs
@@ -138,9 +138,6 @@ pub mod db;
 // APIs esenciales para crear acciones, componentes, módulos y temas.
 pub mod core;
 
-// Acciones, componentes, módulos y temas integrados en PageTop.
-pub mod base;
-
 // API para operar con los servicios web.
 pub mod service;
 
diff --git a/pagetop/src/prelude.rs b/pagetop/src/prelude.rs
index 6dc2c069..b6bd2924 100644
--- a/pagetop/src/prelude.rs
+++ b/pagetop/src/prelude.rs
@@ -30,8 +30,6 @@ pub use crate::core::component::*;
 pub use crate::core::module::*;
 pub use crate::core::theme::*;
 
-pub use crate::base::theme;
-
 pub use crate::service;
 pub use crate::service::HttpMessage;